Altera RapidIO II MegaCore Function - Manual (Page 164)

6–26 Chapter 6: Software Interface
Transport and Logical Layer Registers
RapidIO II MegaCore Function August 2014 Altera Corporation
User Guide
The RapidIO II IP core transmits the values in the LP-Serial Lane n Status 4 CSR
on the outgoing CS field for lane n.
Transport and Logical Layer Registers
This section lists the Transport and Logical layer registers. Table 6–3 provides a
memory map of all accessible registers. This address space is accessible to the user
through the Maintenance Avalon-MM slave interface.
Capability Registers (CARs)
Table 6–3 provides a memory map of all CARs in the RapidIO II IP core. This address
space is accessible to the user through the Register Access Avalon-MM slave interface.
Table 6–22 through Table 6–31 describe the capability registers.
Preset
emphasis
[2] RW
Transmit emphasis command to the connected transceiver to force initial
or preset values. This field is active only when the CMD field has the value
of 1.
2’b0: Ignore.
2’b1: Set all transmit emphasis settings to their preset values.
1’b0
ACK [1] RW
Indicates that a transmit emphasis update command from the RapidIO link
partner is being accepted:
1’b0: Command not accepted.
1’b1: Command accepted.
1’b0
NACK [0] RW
Indicates that a transmit emphasis update command from the RapidIO link
partner is being refused:
1’b0: Command not refused.
1’b1: Command refused.
1’b0
Table 6–21. LP-Serial Lane n Status 4—Outgoing CS Field—Offset: 0x220, 0x240, 0x260, 0x280 (Part 2 of 2)
Field Bits Access Function Default
Table 6–22. Device Identity CAR—Offset: 0x00
Field Bits Access Function Default
DeviceIdentity [31:16] RO Hard-wired device identifier (1)
DeviceVendorIdentity [15:0] RO Hard-wired device vendor identifier (1)
Note to Table 6–22 :
(1) The value is set in the RapidIO II parameter editor.
Table 6–23. Device Information CAR—Offset: 0x04
Field Bits Access Function Default
DeviceRev [31:0] RO Hard-wired device revision level (1)
Note to Table 6–23 :
(1) The value is set in the RapidIO II parameter editor.